Senior Mainframe Developer

Senior Mainframe Developer

Location: New York City, NY/ Jersey City, NJ 4 Days onsite role

Role Overview: We are seeking a Senior Mainframe Developer with strong expertise in COBOL, JCL, and Control-M/CCS (or similar scheduling systems) to support critical enterprise applications. The role involves code screening, analysis/scraping, enhancement, and development on legacy mainframe systems, along with participation in modernization and integration efforts.

This individual will play a key role in maintaining high-performance, stable mainframe applications while contributing to system improvements and integration initiatives.

Key Responsibilities

• Perform code screening, analysis, and scraping of existing mainframe applications to identify dependencies, inefficiencies, and improvement opportunities
• Design, develop, test, and maintain COBOL-based applications
• Develop and manage JCL jobs, including batch processing and scheduling workflows
• Work with CCS / Control-M / enterprise scheduling systems for job automation and monitoring
• Analyze legacy code and contribute to modernization strategies
• Collaborate with cross-functional teams to support integration with distributed systems or APIs
• Troubleshoot production issues, identify root causes, and implement fixes
• Ensure adherence to coding standards, performance guidelines, and security practices
• Document technical specifications, code changes, and system workflows
• Support QA/UAT cycles and deployment activities

Required Skills & Qualifications

• 8+ years of experience in Mainframe development
• Strong hands-on experience with:
• COBOL
• JCL (Job Control Language)
• Mainframe utilities (VSAM, DB2, CICS as applicable)
• Experience with CCS / Control-M / similar job scheduling tools
• Experience with DB2, CICS transaction processing
• Proven experience in code analysis, reverse engineering, and refactoring legacy systems
• Strong debugging and problem-solving skills
• Familiarity with batch processing and high-volume transaction systems
• Ability to work independently and in a team-oriented environment

Nice-to-Have Skills

• Basic understanding of system integration concepts (APIs, middleware, web services)
• Exposure to mainframe modernization initiatives
• Familiarity with distributed systems or cloud integration

Knowledge of DevOps practices for mainframe environments